Vacuum cleaner tank



FIG. 1 is a front and right-side perspective view of a vacuum cleaner tank showing our new design;

FIG. 2 is a front view thereof;

FIG. 3 is a rear view thereof;

FIG. 4 is a left side view thereof, with the right side view being a mirror image of the left side view;

FIG. 5 is a top view thereof; and,

FIG. 6 is a bottom view thereof. 

CLAIM The ornamental design for a vacuum cleaner tank, as shown and described. 